sam: “Nobody will be won over to the other side anyway, so why waste your time with Divrei Havala?”
That’s a good question, but there is an equally good answer.
There are a lot of people who “believe” that the lubavicher rebbe is moshiach because they have been force-fed and brainwashed to believe it by all the crazy claims made by lubavichers. It may be too late for them, but putting forward the ludicrousness, falseness and danger of this view may prevent others falling into the spiritual pit.